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Instrument translation and initial psychometric evaluation of the Danish Body Image Quality of Life Inventory
Author(s) -
Rasmussen Trine Bernholdt,
Berg Selina Kikkenborg,
Dixon Jane,
Moons Philip,
Konradsen Hanne
Publication year - 2016
Publication title -
scandinavian journal of caring sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.678
H-Index - 66
eISSN - 1471-6712
pISSN - 0283-9318
DOI - 10.1111/scs.12311
Subject(s) - cronbach's alpha , danish , exploratory factor analysis , psychology , construct validity , cognitive interview , clinical psychology , face validity , quality of life (healthcare) , psychometrics , anxiety , cognition , scale (ratio) , applied psychology , psychiatry , psychotherapist , linguistics , philosophy , physics , quantum mechanics
Rationale and objectives Negative body perception has been reported in a number of patient populations. No instrument in Danish for measuring body image‐related concerns has been available. Without such an instrument, understanding of the phenomenon in Danish‐speaking populations is limited. The purpose of the study was thus to translate and validate a Danish version of the Body Image Quality of Life Inventory (BIQLI), in order to obtain a valid instrument applicable for healthcare research. Methods The study consisted of two phases: (i) instrument adaptation, including forward and back translation, expert committee comparisons and cognitive interviewing, and (ii) empirical testing of the Danish version (BIQLI‐DA) with subsequent psychometric evaluation. Hypothesised correlations to other measures, including body mass index (BMI), Medical Outcome Short Form‐8 (SF‐8), Patient Health Questionnaire‐9 (PHQ‐9), General Anxiety Disorder‐7 and Symptom Check List‐90‐Revised (SCL‐90‐R ® ) were tested. In addition, exploratory factor structure analysis (EFA) and internal consistency on item and scale level were performed. Results and study limitations The adapted instrument was found to be semantically sound, yet concerns about face validity did arise through cognitive interviews. Danish college students (n = 189, 65 men, M age = 21.1 years) participated in the piloting of the BIQLI‐DA. Convergent construct validity was demonstrated through associations to related constructs. Exploratory factor analysis revealed a potential subscale structure. Finally, results showed a high internal consistency (Cronbach's alpha = 0.92). Support for the validity of the BIQLI‐DA might have been strengthened by repeating cognitive interviews after layout alterations, by piloting the instrument on a larger sample. Conclusions This study demonstrated tentative support for the validity of the Danish Body Image Quality of Life (BIQLI‐DA) and found the measure to be reliable in terms of internal consistency. Further exploration of response processes and construct validity is needed.